Table 4.
Univariate and multivariate logistic regression analysis for postoperative complications.
| Variable | Univariate analysis | Multivariate analysis | ||
|---|---|---|---|---|
| OR (95% CI) | P value | OR (95% CI) | P value | |
| CRP (mg/L) | 1.01 (1.01–1.02) | < 0.001 | 1.00 (1.00–1.01) | 0.118 |
| Perforation (Yes vs No) | 8.93 (3.99–20.00) | < 0.001 | 3.03 (1.03–8.89) | 0.044 |
| Albumin (g/L) | 0.82 (0.76–0.89) | < 0.001 | 0.92 (0.83–1.01) | 0.085 |
| Temperature (°C) | 1.64 (1.27–2.10) | < 0.001 | 1.27 (0.94–1.71) | 0.120 |
| WBC ( × 109/L) | 1.08 (1.03–1.13) | 0.002 | 1.02 (0.96–1.08) | 0.607 |
| PCT (ng/mL) | 1.03 (1.01–1.06) | 0.006 | 1.02 (0.99–1.04) | 0.241 |
| Fecalith (Yes vs No) | 2.42 (1.27–4.60) | 0.007 | 1.08 (0.49–2.38) | 0.852 |
| PLR | 1.00 (1.00–1.00) | 0.010 | 1.00 (1.00–1.00) | 0.252 |
| Age (years) | 0.90 (0.81–1.01) | 0.073 | 1.02 (0.90–1.17) | 0.717 |
| BMI (kg/m2) | 0.94 (0.86–1.03) | 0.195 | ||
| sexFemale | 1.45 (0.77–2.74) | 0.249 | ||
| NLR | 1.01 (0.99–1.03) | 0.324 | ||
| Ascites (Yes vs. No) | 1.37 (0.69–2.70) | 0.367 | ||
| Duration of symptoms (days) | 0.99 (0.94–1.03) | 0.533 | 0.97 (0.88–1.06) | 0.488 |
| SII | 1.00 (1.00–1.00) | 0.556 | ||
OR, odds ratio; CI, confidence interval. Multivariate model included variables with p < 0.1 in univariate analysis and clinically important variables. Outcome: any postoperative complication.